Copyright Gatekeeper Systems 2011
Page 7 of 9
Rev 2.0
Figure 5 – Aiming and zoom example when vehicle is 22 feet back and 6 feet away from the bus.
Locating and Mounting a Second Forward Facing SP-210
In States/Provinces that only require vehicles to have rear license plates a second SP-210 will
be required in order to capture license plate images of vehicles passing a bus in both directions
(back to front and front to back).
Locating and aiming a second, front facing SP-210 is very similar to aiming the rear facing SP-
210
The front facing SP210 should be located behind the stop arm so that it has a clear view of the
target vehicle when the stop arm is deployed and the target vehicle is 22 feet and 6 feet away
from the SP-210 camera. See Figure 6.
It is recommended that a live image be viewed by connecting a monitor to the “video out”
connector of the N404 DVR.
While viewing the live image on the monitor, test position the SP-210 watching for the following:
o
Field of view is not obstructed by deployed stop arm
o
IR from the rear facing SP-210 camera is not visible in the front facing SP-210
o
IR from the front facing SP-210 camera is not visible in the rear facing SP-210
Usually the Front facing SP-210 is located approximately 5 to 6 feet behind the stop arm.
Once the position is identified screw the SP-210 to the bus using the supplied Tek screws.
